I reported an incident one time and they politely informed me that "IF there is an ongoing investigation you won't hear back from us until it is complete." 

Having said that, base on my research at the time of this incident I did learn that once someone, other than the owner, files for adverse possession, the owner is notified by mail.  

For us the total cost of the flood incident was, under $500, i did not include the price of the new floor because we were about to replace that anyway. 

But if you have them concentrated, an incident like that could take out a bunch of your units at once.

You have raised some issues that I had not thought of, such as the legal aspect of being found negligent and the simple matter of the law prohibiting breaking and entering.The block is on a busy street that is generally incident-free but our city has a reputation for a high crime rate and many people live in fear of break-ins or attack.

In the past two years I have had two incidents of credit card identify theft (one serious).  

The owner got a decease and desist order from the state utility commission.Another incident was an HOA sharing utilities with common areas with tenant/owners, someone complained, they were ordered by the commission to meter separately and fined them administratively.

Up until last weekend I didn't think I can get another property again but due to an unexpected incident a broker run my credit and told me that I am qualified to get a property--with 3.5% down!

I lost a friend to a domestic incident so I have no sympathy to men that can't control their emotions.Go after the nut if you want but it sounds like he is a piece of garbage, unlikely to take responsibility.

A journal with the who, what, when, and a summary of any incident is the sorta thing you can hand over to your attorney so he can better understand and assist you through your situation.